Form 4 Filing for AXT Inc.

This filing details a transaction by JESSE CHEN, a director at AXT Inc. On June 15, 2026, Mr. Chen sold 6,172 shares of Common Stock at a weighted average price of $115.24 per share. The sales occurred in multiple transactions with prices ranging from $113.38 to $116.69. Following these transactions, Mr. Chen directly owns 50,275 shares of AXT Inc. stock. The reported price is a weighted average, and full details of individual transactions will be provided upon request.